/*
 *  Copyright (c) 2009, Hugo Augusto Alves
 *  All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *      * Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *      * Neither the name of the Hugo Augusto Alves nor the
 *        names of its contributors may be used to endorse or promote products
 *        derived from this software without specific prior written permission.
 * 
 *  THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
 *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.wiscriptor.wiki;

/**
 *
 * @author Hugo
 */
public class Version {

    private int major = 0;
    private int minor = 0;
    private static final String separator = ".";

    public Version(String version) {
        if(version == null || version.equals("")) return;
        int sepPosition = version.indexOf(separator);
        if (sepPosition == -1) {
            return;
        }
        try {
            major = Integer.parseInt(version.substring(0, sepPosition));
            minor = Integer.parseInt(version.substring(sepPosition + 1));
        } catch (NumberFormatException nfe) {
            major = 0;
            minor = 0;
        }
    }

    public Version() {
    }

    public int getMajor() {
        return major;
    }

    public int getMinor() {
        return minor;
    }

    public void increaseMajor() {
        major++;
    }

    public void increaseMinor() {
        minor++;
    }

    public String getVersionString() {
        if(minor < 10) return (major + separator + "0" + minor);
        else return (major + separator + minor);
    }

    public static boolean isValidVersion(String version) {
        if (version == null || version.equals("")) {
            return false;
        }
        int sepPosition = version.indexOf(separator);
        if (sepPosition == -1) {
            return false;
        }
        try {
            Integer.parseInt(version.substring(0, sepPosition));
            Integer.parseInt(version.substring(sepPosition + 1));
            return true;
        } catch (NumberFormatException nfe) {
            return false;
        }
    }
}
